Donarini, Andrea and Siegert, Benjamin and Sobczyk, Sandra and Grifoni, Milena (2012) Topographical fingerprints of many-body interference in STM junctions on thin insulating films. PHYSICAL REVIEW B, 86 (15): 155451. ISSN 1098-0121,
Full text not available from this repository. (Request a copy)Abstract
Negative differential conductance is a nonlinear transport phenomenon ubiquitous in molecular nanojunctions. Its physical origin can be the most diverse. In rotationally symmetric molecules with orbitally degenerate many-body states it can be ascribed to interference effects. We establish in this paper a criterion to identify the interference blocking scenario by correlating the spectral and the topographical information achievable in a scanning tunneling microscopy (STM) single-molecule measurement. Simulations of current-voltage characteristics as well as constant-height and constant-current STM images for a Cu-phthalocyanine on a thin insulating film are presented as experimentally relevant examples.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | NEGATIVE DIFFERENTIAL-RESISTANCE; SINGLE-MOLECULE JUNCTIONS; QUANTUM-INTERFERENCE; ORGANIC-MOLECULES; ATOMIC-SCALE; CONDUCTANCE; TRANSISTORS; TRANSPORT; DEVICE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group Milena Grifoni |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 May 2020 05:18 |
| Last Modified: | 05 May 2020 05:18 |
| URI: | https://pred.uni-regensburg.de/id/eprint/17923 |
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